Lock.



vH. G. voiGHT.

LOCK.

APPLICATION FILED MMM 19m Patented Aug. 7, 1917.:

' 2 SHEETSfSHEE'T l .l

ITED STATES IATEI'I OFFICE. l

HENRY G. VOIGIIT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO -SARGENT & COM- PANY, OF NEW HAVEN, CONNECTICUT, CORPORATION OFVCONNECTIVCUT.

LOCK.'

. Specification of Letters Patent. Patented Aug', 7, 1917,

vApplication led March 1, 1916. Serial No. 81,457.v

To `all whom t may concern Be it known that I, HENRY Gr. Voisiri,l

a citizen of the United States, residing in New Britain, county of Hartford, and State Y of Connecticut, have invented .certain new and useful Improvements in Locks, of which i i the following is a full, clear, and enact deoperative position, and also retract the latch,

whereas another key for the pinl tumbler mechanism can retract the latch when it is free but cannot actuate or control the dog- A ging mechanism.

The obJects of the invention are vto provide improved mechanism for carrying out the functions above stated; to furnish a lockV in which a single rollback mounted on a pin tumbler cylinder is adapted to be actuated by one key so as to cause the dogging means to be moved into or withdrawn from the operative position, and the latch bolt to be reti'acted,jwhereas said rollback is operableY by another key onlyV to the extent of retracting the bolt when the dogging means is in the inoperative position; and to improve and simplify the general construction and operation of devices of the classto which theinvention relates. Y

To these and other ends, the invention consists in the novel featuresand combinations of parts to be hereinafter described` and claimed.

In the accompanying drawings,

Figure 1 is a front elevation of a lock embodying my improvementsV with the cap plate removed, showing the Vdogging slide for the latch bolt in the inoperative'position, the operative position of said slide being indicated in dotted lines;

Fig. 2 is a view of the upper part ofthe lock, showing the latch bol-t retracted: by the vchange key;Y y

Fig. s Shows the iai-.Ch boit dogged by the cloggingv slide and the rollback on the cylr inder commencing the operation of withdrawing the Vdoggingslide v and retracting the bolt; f

Fig. 4 is a fragmentary view, showing the completion of the operation just mentioned; Fig. 5 is a section on line /5-5 of Fig. 1,l

showing the change key` inserted into the cylinder; Y

Fig. 6 is a sectionl on line 5 5, but looking in the opposite direction, VshowingV the emergency key inserted intothe cylinder; c

Fig.' 7 is a detailsection on line 7'-7 of iff.

Fig. 2, illustrating the operation Yof the change key;

Fig. 7A is a detail section on line Af A of Fig. 3, showing the operation of the emergency key.;

Fig. 8 is a section on line 8-8 of Fig. 1;

Fig. 9 is a section on line 949 of Fig. 1; and

Fig. 10 is a ging slide.

^ In the particular form shown, the case 11y of the lock, having the usual 'face plate 12,A contains a Vlatch bolt 13 normally projected by a spring 14:. Ihe stem -15 of the'bolt` carries a head 16, engaged by a voke 17 adaptedy to be actuated by an inside hub 18 and an outside hub 19. By this meansthe latch bolt may be retractedV bythe inside and outside knobs, and usually the outside detail edge View of the dog knob may be dogged by stop work mechanism 20, 21, 22,.associated with the outside hub 19 -in thev usual manner`,although thisy is not a material feature of the invention.

The latch bolt-13 may be'retracted from the outside of the door through a cylinderf i lock23, adaptedA to actuate an elbowlever 24, pivoted to the-case at 25, and having adepending arm 26 engaging the` crosshead 16'of the latch bolt and a portion-ofA theV yoke y-17 in-the usual manner. The other arm 27 of the elbow lever 24; is adapted" to be depressed by a bit, dog or rollback 28v of the cylinder lock 23,'whereby the .armvv 26'of'theelbow l'ever2f1 is carried rear-y wardly to retract'the latch bolt. The latch bolt 13 is adapted to means of a thumb turn Vorthe like at the inside of ,the door.

In theembodiment' illustratedgafthumb turn hub29 ismountlf14A be dogged or deadlocked in its protractedl 'position by K "32, 33 projecting from the clogging slide 31 so that if the arm 30 is moved downward it will abut the pin 33 and thereby move thev slide to clogging position with respect to the latch bolt, whereas if the arm is moved upward, it will abut the pin 32 and thereby move the slide upwardly so as to release the latch bolt. This slide 31 is guided in the case by means of suitable lugs which it is not necessary to describe in del`tail, and when once moved to a predetermined position it tends to retain that position by virtue of the frictional engagement of a spring 34 (socketed in the pin or projection 33) with the cap plate of the case.

In order to actuate the slide 31 by means of one of the keys for the cylinder lock 23,

as hereinafter described, the upper end portion of the slide is provided with a lateral projection 35 adapted to be engaged by the f operating projection 28a of rollback 28, for

the purpose of depressing the slide into the clogging position shown in Fig. 3. For the purpose of raising the clogging slide out of the operative position by means of said "key, as hereinafter described, a slide-actuating member r36 is provided. This preferably takes the form of a lever or walking beam, pivoted intermediate of its ends on a pin 37 which is socketed in the back of the case, and which engages a hub or bearing portion 38 on the under surface of lever 36, as shown in Fig. 6. One extremity 39 of the lever 36 is disposed between the pin 32 and the abutment or projection 35 on the upper end of the slide and is adapted shoulder 41 on the extremity of arm 27 ofl to raise the slide by engaging said abutment. The opposite end of the lever 36 hasv a lip 40 extending rearwardly therefrom at the upper edge and overlying a the latch retracting lever. When the rollback 28 rotates in the plane which it occupies in Fig. 5, it is adapted to actuate the latch retracting lever through a small lever `42, pivoted on a post 43, and having its free end supported and resting on a shoulder 44 on the free extremity of arm 27. In withdrawing the latch, the operating projection 28a of the rollback abuts against the free end 42a of lever 42 and presses it down on the free end of arm 27 so as to actuate the lever 24 to retract the latch, as shown in Fig. 2.

The rollback 28 may',`

however, be displaced rearwardly so as to rotate in another plane, as hereinafter described, and whenrso rotated it is adapted to engage the free end 45EL of a lever 45,

pivoted on the post 43 in front of the lever y 42. The end portion 45a of lever 45 rests freely on the rearwardly turned lip 40 of the walking beam or lever 36, and thus when the lever 45 is depressed by the abutment 4of the operating projection of the rollback with its end portion 452L (Fig. 4), the adjacent end of lever` 36 is depressed, and in turn it depresses the arm 27 of lever 24 to retract the lat-ch bolt, while at the same time the opposite end portion 39 of lever 36 is raised to move the slide 31 out of the path of the latch bolt by engagement of the portion 39 with'the under surface of the projection 35, as shown in Fig. 4.

VReferring now to the detailed construction of the cylinder lock 23, it will be observed that this cylinder lock has the usual case 46, face plate or escutcheon 47, and key plug or barrel 48. The dog or rollback 28 is secured on the' rear end of the key plug 48. Preferably it embraces an extension on the rear end of the key plug, and is secured to said plug by suitable screws 48a, as shown. Surrounding the key plug is a sleeve 49 rotatable concentrically with respect to said key plug, and sectional pin tuinblers 50 of the usual type connect the key plug, sleeve and casing, the arrangement being such that one key is adapted to rotate the key plug individually, while another key rotates both the key plug and sleeve. When the change key 51 is used to actuate the cylinder' lock, the rollback 28 will be rotated in its normal plane, so that its operating projection 28 will turn in the plane of the operating projection or end portion 42fof lever 42, and thereby depress the arm 27 of the latch retracting lever and retract the latch bolt without actuating the lever or walking beam 36. Zhen the emergency key 52 is used to actuate the cylinder lock, the operating projection of the rollback will be rotated in the plane of the operating projection 45EL of the secondary lever 45, so as to operate the lever 36 to withdraw the clogging slide from the operative position, in case it occupies that position. To accomplish these results, the sleeve 49 is movable endwise of the casing 46 when the emergency key is used, and to permit this the shoulder 53 at the forward end of the sleeve 49 operates in a somewhat wider rabbet 54 in the face plate of the cylinder, so that when the sleeve is released and turned by a key, as shown in Fig. 3, the sleeve may move rearwardly until the shoulder 53 takes up against a shoulder 55 on the casing of the cylinder. In other words, the shouldered portion of the casingl at the face of the cylinder, which limits the endwise movement of the sleeve, is farther back may have an appreciable rearward movey ment. In this operation, the sleeve is locked by the pin tumb-lers to the keyv plug 48,

so that the latter is likewise carried rearwardly, together with the rollback 28, and therefore instead of rotating in the normal plane of rotation, the rollback is carried rearwardly and rotated in the plane of the lever 45, which actuates the lever 36. Be-

tongue or lip 58 vabutting against the rear face of a ca mmember 59, screwed or other-v wise secured to the rear extremity of the sleeve 49. When the emergency key is inserted into the cylinder, the engagement between the lip 58 and cam 59 will take up rearward thrust on the sleeve and thereby relieve the tumblers of strain and wear; but when the sleeve is turned by the emergency key, the cam 59 will disengage the lip 58 and thereby `permit the sleeve to be thrust rearwardly under the usual pressure on the key, so that the rollback 28 will be rearwardly displaced, as above explained. By preference, the cam 59 is screwed against the rear face of the sleeve, and that part of the cam which engages the lip 58 is in the form of Y a radial projection which is rounded off at its rear face, while the coperating lip 58 is rounded olf at the front face. VIn Fig. 5, I have shown the position of the parts when the change key is inserted into the cylinder. This key is only operative to retract the latch bolt through the levers 42, 24, as `pre-V viously explained. When the emergency key is inserted in the cylinder, as shown in Fig. 6, the pin tumblers are racked so as to permit the key plug and sleeve to rotate together, and as the sleeve moves backwardly,

the key plug 4and its rollback are carried thereby. Then the keyis inserted, rearward movement of the rollback isV at first prevented by the engagement of lip 58 with cam 59, but when the keyis turned in'eitlier direction-,the

lprojection cf the cam passes clear of the lip,

and is then moved rearwardly by the usual pressure of the hand of the person actuatingv the lock, so as to carry therollb-ack into the plane of the`arm45 and lever 36. If, however, the pressureonthe key is not sufficient to'movethe rollback to itsrearmost posil tion, this willbe' eifected by the camv actionl of -thecam 59 onthe casing of thelcylinderl lock which is cut away topresent camVv surfaces 60. adapted to be contacted'by'the camk 59, as the latter is rotated'in yone or the other direction, 'and to thrust the :rollback in va rearward direction. The ,cam rotates in contact with'the rear faceyof the cylinder cas` ing, after v'said :cam has been 'thrust'. reapY wardly, and therefore it will be understood that the cam or key thrusts back `the rollback when said key has been turned to a very .slight extent, and that thereafter the rollback is prevented from moving out of the plane of the arm 45 and lever 36 until the key is turned back to its initial position. As the parts approach the initial position, the cam 59 is thrust against the lip 58, which is also in the nature of a cam, and said lip thrusts the cam forwardly again so that when the tumblers are lined upy for the removal of the key, thevsleeve, key, plug and rollback, will occupy the normal positions relatively to thecylinder.

Supposingthat the improved lock is used on the door of a hotel rooin, and the guest wishes to lock the door against intrusion. To do this, the thumb turn is rotated by the usual thumb knob in a clockwise direcT tion, so as to move the dogging slide down into the operative position, as shown by the dotted lines in Fig.l 1'. l Under these conditions, the door cannot be released from the outside by the change key or any other key still be had, however, by the use of the emergency key which carries vthe rollback i' into the plane of lever 45, so as to withdraw the clogging slide'from operative position by pressing down 'the left hand end of lever 36 through the lever 45` at the same time that the lever 45 operates-the llever 24 to retract the latch bolt. The arrangement is such that the latch bolt is retracted and the clogging slideis raised,V as the rollback 28 moves from' the position shown in Fig. 3 to that shown .i'nFig` 4. In'other words, a very slight rotation of the rollbackvrwill accomplish these two results. The latch bolt andthe slide move together, but the slide keeps ahead of the latch bolt, so to speak, so

Y The emergency key or another key whichV will 4displace the rollback in a rearward dii t rectiony may alsobe used as a shut-out `key' so that thedOOr when locked Vby suchkey cannot bev released by another key or keys. In the'particula'r-'form shown, the emer gency key will serve asashut-out key because f itl will. actuate the rollback tofdepress rthe doggingslide into' thejoperative position.` When it is 'desiredtolock the door against thekeys of lower order, the emergency key isinserted `into the'cylinder lock and rotated ina clockwise ldirection with respect to'Fig.

3, so'that the operating projection ofthe rollback'ris moved `into'engagement with the abutmentv or projection 35f on the upper end portion of the slide, as indicated in kdotted lines in Fig; 3, whereby the slide is moved down into aapositioto block4 the' incursionV of the bolt. The door can still be opened by the emergency key, however, for when the same is .turned in a Acounterclockwise direction with respect to Fig. 8, the walking beam or lever 36 will be vactuated to raise the s lide concurrently with the withdrawal of thel bolt, as previously described. It is understood, of course, that the change key and other keys which Irotate the key plug individually cannot at any time actuate the clogging slide, because the operating projection 35 of said slide is located out of the normali plane of rotation-of the rollback, and will only engage the rollback when the same has been displaced in a rearward direction.

Various changes in the details of the .construction may be adopted without departing from the scope of the invention as delined `in the claims. Naturally in giving a complete description of the particular embodiment selected for illustration, I have had to describe a number of features which are immaterial. to the broad principles involved. 1

I do not claim herein the cylinder lock perse having a rearwardly displaceable rollback, as claimed in my application Serial No.' 74,461; nor do-I claim broadly herein the combination with mortise lock mechanism having two members lying in different planes, of a cylinder lock having a rollback tov engage and operate either of said members, as claimed in my application Serial No. 711,460; neither do I claim broadly :herein thecombination of a latchbolt, re-

tracting mechanism therefor, clogging mechanisni therefor, a cylinder lock having` a rollback, a key for said cylinder .lock adapted to operate said retracting mechanism alone gajlthrough said rollback, and another key for flock, and a single rollbackon said cylinder lock arranged relatively to said mechanism for voperating said clogging mechanism to release the bolt, and for engaging and operating said retracting mechanism to retract .fthe bolt as said rollback moves in the same direction; substantially as described.

2. In a lock, a latch bolt, retracting mechanisni therefor, mechanism for clogging said bolt in protracted position, a cylinder lock,

Ya rollback for said cylinder lock, a key for said cylinder lock adapted to operate said retracting mechanism alone through said rollback, and another Ikey for saidcylinder lock adapted to release 'said dogging mechanism through said 'rollback concurrently with the operation of said retracting mechanism by the latter; substantially as described. l

3. In a lock, a case having a face plate, a latch .bolt in said case, retracting mechanism for said latch,bolt,.mechanism.for clogging said latch bolt in its protracted position, a cylinder lock, and a single rollback on said cylinder lock arranged. for releasing said clogging mechanism and for engaging and operating said retracting mechanism to withdraw the boltL as said .rollback is turned slightly from its normal position toward the face plate, said rollback operable. when turned in the opposite direction to `move said clogging mechanism into the1 operative po- Sition; substantially as described..

4. In a lock, .a llatch bolt, mechanism for clogging said latch bolt in its protracted position, thumb/turn means for movingsaid clogging mechanisminto its operative position from the inside ofthe room, a separate means for moving said mechanism into its inoperative position, a cylinder lock, and a rotaryv rollback on vsaid cylinder lock arranged and located .for operating said lastname-d means to release the bolt, and for retracting the bolt, as said rollback moves in the same direction; substantially as described. i

5. In a lock, a latch bolt, retracting mechanism therefor, a slide for clogging said latch bolt in its protracted position, a thumb turn member for moving said slide into its operative position, a member separate from said thumb turn member for moving said slide into its inoperative position, a cylinder lock, and a rollback on said cylinder` lock for operating said last-named member to releasethe bolt, and for engaging and .operating said retracting mechanism concurrently with the withdrawal of said slide; substantially. as described. y

6. In a lock, a latch bolt, a retracting lever therefor, a slide for clogging :the bolt in protracted position, a thumb turn member for operatingy said slide, an operator in the case for moving said slide to the inoperative position, a cylinder lock, a rollback for said cylinder lock, a key for said cylinder lock adapted tol actuate said Vretracting. lever alone through said rollback, and another key for said cylinder lock adapted to move said rollback into operating. relation4 to. said slide operator and said retracting lever on one and the same movement of said .rollback so as to withdraw the slide and retract the latch bolt concurrently; substantially as described.

7 In a lock, a latch bolt, al member for clogging said bolt inits protracted position, retracting means for said bolt, .thumb turn means for moving said clogging member into its operative position,- means for moving said clogging member into an inoperative position,'a cylinder lock, and a single rollsaid clogging slide;` substantially as described.

9. The combination with a ,latch bolt mechanism having a retracting lever and a clogging slide, of a cylinder lock having a rearwardly movable rollback adapted to engage and operate either said retracting lever or said clogging slide; substantially as described.

10. In a lock, a latch bolt, a retracting member therefor, a slide for clogging said bolt in retracted position, a cylinder lock, a rollback for said cylinder` lock, a key for said cylinder lock adapted to move said rollback into engagement with said retracting member, and another key forl said cylinder lock adapted to move said rollback into .another plane so that it will engage said dogging slide; substantially as described.

11. In a lock, the combination with a case, a latch bolt therein, a deadlocking slide movable at right angles to the latch bolt, a cylinder lock carried by the case and having a rollback, a latch retracting lever pivoted to the case and adapted to be actuated by said rollback, a key for operating said lever to retract the latch bolt when said slide is in the inoperative position, a second key for moving said rollback into engagement with said slide so as to shift the latter into operative position, and means for moving the slide out of its operative position when said rollback is turned in the opposite direction to retract the bolt by means of said second key; substantially as described.V

12. In a lock, a latch bolt, a deadlocking slide movable at right angles thereto, a retracting lever for said latch bolt, a cylinder lock having a rollback, a key for actuating said rollback to operate said retracting lever and withdraw the bolt, means for moving said slide into deadlocking position, a second key for moving the deadlocking slide into operative position by means of said rollback, and means or moving the deadlocking slide out of operative position through said rollback while the latch bolt is being retracted thereby; substantially as described.

13. In a lock, a latch bolt, a deadlocking slide movable at right angles thereto, a retracting lever for said latch bolt, a cylinder' lock having a rollback, a key for actuating said rollback to operate said retracting lever and withdraw the bolt, means for moving Y end of the retracting lever and a part of the said slide into deadlocking position,- a second key for moving the deadlocking slide into operative position by means of said rollback, v and a lever pivoted intermediate of its ends and adapted to be operated by said rollback` when the; latter is actuated by said second key, for moving thek slide out, of operativer position as the latchbolt is retracted; substantially as described.

14E. In a lock, the combination of a case, a-

latch bolt therein, a deadlocking slide movable at right angles to the latch bolt, a thumb Y turn hub for moving said slide into andout of deadlocking position with respect to the latch bolt, a retracting lever for the bolt, a cylinder lock out of line with said thumb turn hub and yhaving a rearwardly movable rollback located in the space between said deadlocking slide and the free end of said retracting lever, a key for turning said rollback in one plane to operate said retracting lever and withdraw the bolt, another key for turning said rollback in another plane, and

a walking beam vmember engaging the free deadlocking slide so as to withdraw said Y slide from operative position by means of saidv second keyconcurrently with the ref traction of the bolt; substantially as described. f

15. In a lock, a case, a latch bolt therein, a deadlocking slide movable at right angles to the latch bolt, a latch retracting` lever pivoted to the case, a swinging walking beam member pivoted intermediate of its ends and having one end arranged' to engage saidv deadlocking slide and move `it out of operative position, the other end of said walkinO beam member being in proximity to one end of said latch retracting lever, two keys, and a cylinder lock mechanism adapted to actuate saidwalking beam member and said latch retracting lever when operated by one key,

' said cylinder lock mechanism inoperative on said walking beam member when the other key is used; substantiallyas described.

16. In a lock, a case, a latch bolt therein, a slide for deadlocking the latch bolt, a swinging walking beam member pivoted intermediate of its ends and having one end operatively associated with said deadlocking slide to shift the same, and a cylinder lock mechanism to actuate saidy walking beam member from the opposite end thereof; substantially as described. 120

17. In a lock, a case, a latch bolt therein, a slide for deadlocking said bolt, a lever for retracting said bolt, a swinging member pivloted to the case intermediate of the ends of said member, and having one end associated with said slide to actuate the same, the other end of said member being operatively associated with said lever to actuate the same, and means for operating said member; substantially as described. 130

18. In a lock, a case, a latch bolt therein, a'cleadlocking` slide 'movable at right angles to the latch bolt; a latch retracting lever pivoted to the case, a swingingmember having` one part arranged to engage and operate Said deadlockingslide, anclfhaving another part arranged to engage 'and .operate 'said latch retracting lever, tWo keys, and a'cylinder lock mechanism adapted to actua't-e said lever and said slide by meansl of said member when one'of saicl'keys4 is useclysaicl cylinder llock mechanism being operative' on said lever'onl'y,v when 'theotlier key is isecl;

Substantially as described.

Copies of this patent :may be obtained for 19. In a lock, a case, a latch bolt therein, a slide for cleacllockingthe latch bolt, a lever for retr'acting the latch bolt', 'a single member i'nth'ecase for operating both said lever and Said slide, key mechanism, a key for actuating said key mechanism to operate both the lever and slide by means' of said member, and another key which actuates said key' mechanism `to operate Said lever'` independently of Said operating member; substantially as described. v l

In Witness whereof, I have hereunto set my hand on the 28th day ofFebruary, 1916.

" HENRY G; VOIGIIT.

five cents each, by addressing the ,Gomrnssioner or Patents, Washington, D. G. i 

